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The Daily Insight

Is it okay not to take prenatal vitamins?

Author

Abigail Rogers

Updated on February 25, 2026

Pregnant women don't need prenatal multivitamins, study concludes. Prenatal vitamins are a staple of modern pregnancy. But a report out Monday in the journal Drug and Therapeutics Bulletin suggests they don't make much difference in preventing complications such as premature birth, low birth weight, and stillbirth.

Also know, what happens if you don't take prenatal vitamins?

As for calcium, Moon adds that if a pregnant woman doesn't take in enough of this mineral for both herself and her baby, her body will leech calcium from her bones and teeth to help the baby, putting her at risk for weaker bones and osteoporosis.

Additionally, what are the side effects of taking prenatal vitamins when not pregnant? The iron in prenatal vitamins may cause constipation, and some women complain of nausea. You also may have diarrhea, dark stools, low appetite, and stomach upset or cramps. Talk with your OB/GYN or midwife about any side effects you have from taking prenatal vitamins.

In this regard, is it really necessary to take prenatal vitamins?

Even if you eat a super healthy diet, you still need prenatal vitamins. It takes a lot of vitamins and minerals to grow a baby! Prenatal vitamins give you extra amounts of these three key nutrients for pregnant women: Folic acid helps your baby's brain and spinal cord develop correctly.

When should I stop taking Prenatals?

And don't quit your prenatal vitamins after birth—pop them for at least four to six weeks after, or until you stop breastfeeding, to protect both you and your baby from nutrient depletion and to start your first months together off right.

Related Question Answers

Is it OK to take your prenatal vitamins at night?

In general, prenatal vitamins should be taken on an empty stomach with water. If you experience nausea while taking your prenatal vitamins, take your vitamin at bedtime and with a light snack. If you experience extreme nausea, immediately consult your primary health care provider.

Can not taking Prenatals cause miscarriage?

Regardless of whether or not prenatal vitamins can prevent a miscarriage, they are good for your baby's development once you become pregnant.

How long does it take for prenatal vitamins to get in your system?

“Popping a prenatal vitamin won't immediately get your blood levels to where they need to be—it takes some time. Folic acid is especially important to begin taking earlier than conception, because the fetal brain and spinal cord are formed within the first trimester—the first 13 weeks of pregnancy.”

How long do you take prenatal vitamins for?

This is why doctors recommend that any woman who could get pregnant take 400 micrograms (mcg) of folic acid daily, starting before conception and continuing for the first 12 weeks of pregnancy.

Do you have to take prenatal vitamins at the same time everyday?

If it seems like taking the vitamins first thing in the morning or without food is making you sick, try taking them right before you go to bed. The benefits of prenatal vitamins are cumulative, so the most important thing is that you take them every day.

How can I take prenatal vitamins without getting sick?

Prenatal Vitamins and Nausea
  1. Change when you take your pill. Try taking your vitamin at the time of day when you're least nauseated.
  2. Eat first. Whatever time of day you pop the pill, make sure your tummy isn't running on empty.
  3. Ask your doctor for recommendations.

Which prenatal vitamins are best?

Best Over-the-Counter Prenatal Vitamins of 2020
  • Best Value Prenatal Vitamin : Nature Made Prenatal Multi + DHA.
  • Best Overall Prenatal Vitamin : One a Day Prenatal Multivitamin.
  • Best Gummy Prenatal Vitamin : Vitafusion Prenatal Gummy Vitamins.
  • Best Vegetarian Prenatal Vitamin : Garden of Life Vitamin Code Raw.

Are prenatal vitamins necessary in third trimester?

And many have vitamin D and calcium to build strong bones and teeth during the third trimester of pregnancy. Plus, prenatal vitamins help make sure you have enough nutrients such as iron, to not only provide to your baby but so your own body doesn't become depleted.

What should you avoid when taking prenatal vitamins?

Supplements to avoid during pregnancy
  • Vitamin A. You'll often find vitamin A in your prenatal vitamins since it's so important.
  • Vitamin E.
  • Black cohosh.
  • Goldenseal.
  • Dong quai.
  • Yohimbe.
  • Other herbal supplements considered unsafe during pregnancy.

What is considered normal weight gain for a pregnant woman?

Weight Gain Recommendations For Women Pregnant With One Baby
If before pregnancy, you were… You should gain…
Underweight BMI less than 18.5 28-40 pounds
Normal Weight BMI 18.5-24.9 25-35 pounds
Overweight BMI 25.0-29.9 15-25 pounds
Obese BMI greater than or equal to 30.0 11- 20 pounds

What happens if you don't take folic acid during pregnancy?

What can happen if I do not get enough folic acid during pregnancy? If you do not get enough folic acid before and during pregnancy, your baby is at higher risk for neural tube defects. Neural tube defects are serious birth defects that affect the spine, spinal cord, or brain and may cause death.

Can I stop taking prenatal vitamins after first trimester?

When to start and stop taking prenatal vitamins

If you're unable to tolerate the vitamin because you feel sick in the first trimester, it's OK to start once you're feeling better. You should continue to take a prenatal vitamin for the duration of breastfeeding, however long that may be.

Do prenatal vitamins make you more fertile?

Take a prenatal vitamin.

A recent study found that women undergoing fertility treatments who were taking prenatal multivitamins were twice as likely to get pregnant as women who were undergoing the same treatments but taking only folic acid.

Why does prenatal vitamins help hair?

Specifically, prenatals are packed with folic acid (the synthetic form of folate), a B vitamin that's responsible for healthy cell growth (which includes skin, hair, and nails!). Most prenatal supplements contain 600 micrograms of it; the amount recommended per day for pregnant women.

Do prenatal vitamins give you pregnancy symptoms?

Women in their first trimester of pregnancy are most likely to experience morning sickness—a symptom compounded by the fact that prenatal vitamins can cause nausea too.

What are the benefits of taking prenatal vitamins before pregnancy?

Now, experts suggest starting a prenatal vitamin with 400 micrograms of folic acid before you try to have a baby. This important nutrient prevents spinal defects in growing babies. See if your prenatal vitamin has DHA. This type of omega-3 fatty acid can help the health of your baby once you get pregnant.

Is it safe to take prenatal vitamins when trying to get pregnant?

No, you're not pregnant yet — but taking a prenatal vitamin in the months leading up to conception can help prevent serious birth defects, preterm delivery, and — as a just-for-mom bonus — morning sickness. So ask your practitioner for a recommendation and get popping now.

Are gummy prenatal vitamins effective?

Many times, prenatal vitamins in pill-form have been known to cause upset stomach—particularly when there are several pills/tablets in one serving. Gummies and liquid supplements are effective and make taking prenatal vitamins easier.